import com.sun.istack.internal.Interned;

public abstract class 抽象类 {
    String name;
    int age;

    public 抽象类() {
    }

    public 抽象类(String name, int age) {
        this.name = name;
        this.age = age;
    }
    public abstract void eat();
    public abstract void walk();
}

class aaa extends 抽象类{
    public aaa() {
        super();
    }

    public void eat(){
        System.out.println("我在吃");
    }

    @Override
    public void walk() {

    }


}
